This development kit allows the user to implement and test several sensing applications at the 24 GHz ISM band such as tracking and collision avoidance. This is possible by using fast chirp FMCW and two receive antennas to get the angle, distance, speed and direction of motion. The kit consists of the BGT24MTR12 transceiver MMIC and a XMC4700 32-bit ARM® Cortex®-M4 for signal processing and communication via USB. An alpha-Beta tracking algorithm fully running on the XMC microcontroller allows for simultaneous tracking of multiple objects. A block diagram of the demonstrator board is shown in the figure below highlighting all main board components. The board is already preprogrammed using Infineon’s DAVE™ development tool. The module features a phased locked loop that is controlled with the XMC4700 to generate the FMCW ramps required for distance measurement. The MCU samples up to 4 IF channels of the transceiver chipset and communicates via USB interface to a connected PC. A provided PC application GUI (Windows XP/Vista/7/8/10) can be used to display and analyze acquired data in time and frequency domain. The GUI allows for the extraction of the radar time domain signals allowing for advanced debugging and algorithm development.
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